How is CNG obtained in 70 words?

Compressed Natural Gas (CNG) is obtained by compressing natural gas, primarily consisting of methane, to less than 1% of its volume at standard atmospheric pressure. The natural gas is extracted from underground reservoirs through drilling and then processed to remove impurities. After purification, it is compressed using high-pressure compressors and stored in specialized tanks for use as a fuel in vehicles and other applications. CNG is a cleaner alternative to gasoline and diesel.